Hoop-bending machine



3. W. JONBS.- Hoop-Bending Machine.

No. 225,222. Patented Mar. 9, 1880,

UNITED STATES PATENT OFFICE.

JOEL W. JONES, OF BELLAIRE, OHIO.

HOOP-BENDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 225,222, dated March 9, 1880.

Application filed July 31, 1879.

To all whom it may concern:

Be it known that I, JOEL W. JONES, of Bel laire, in thecounty of Belmont and State of Ohio, have invented certain new and useful Improvements in Hoop-Bending Machines; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyin g drawings, and to letters of reference marked thereon, which form a part of this specification.

Figure l is a front elevation of my improved machine. Fig. 2 is an end elevation of the same. Fig. 3 is a plan view, and Figs. 4, 5, and 6 are enlarged detail views.

My invention relates specially to a machine for forming barrel and keg hoops, commonly called a hoop-bender, by means of which I am enabled to bend and tack the hoops together at the ends preparatory to their being permanently attached to the stave-cylinder in a perfect and expeditious manner.

To this end my invention consists, first, of a circular metal former or wheel, around which the hoops are bent andtacked together at the ends, having a segmental pivoted clamping jaw, forming part of the rim, in combination with a wedge-shaped or tapering draw-bar working in a corresponding tapering slot or groove through the former under the end of the jaw, and mechanism to operate the same, bymeans of which the end of the hoop is held while bending it around the former.

It consists, secondly, of a sliding cross-frame journaled on the axle of the former and moving to and from the former by means of independently-operating mechanism, to the arms of which is attached the tapering draw-bar for operating the clamping-jaw on the former and two or more studs or pins, by the aid of which the finished hoop is pushed off the former.

It consists, thirdly, of a spring arm and treadle to press down the hoop and hold the loose end while being tacked, all of which will be hereinafter more fully explained in detail, reference being had to the drawings, in which like letters of reference refer to like parts.

The letter A designates a bench or'table'; B, a metal wheel or former journaled through the frame of the table at H, having its periphtached to the ends of the cross-frame at the proper distance from the center to pass the rim of the former for the purpose of pushing off the finished hoop. f is a tapering drawbar attached to the cross-frame G and working in the tapering slot through the clampingjaw G at s. D is a spring attached to the side of the table A at one end, and operating in the groove cl against the collar on the crossframe 0. F is a crank to turn the former. a is a stop-pin; I, a driving-rod; J a cran k-arm attached to the driving-rod I and frame m of the bench; 0, a treadle; it, an attaching-rod; E, a spring-arm to hold the hoop down while being tacked. j is a treadle; h, connectingrod.

The mode of operation is as follows: lPressure is applied to the treadle 0, which forces the cross-frame 0 toward the former B, thus relieving the pressure of the tapering drawbar upon the jaw G, and permitting it to fall sufficiently to raise the forward end for the reception of the end of the hoop. After placing the end of the hoop under the end of the jaw, pressure is removed from the treadle 0, and the spring D pushes back the frame 0, which draws the tapering draw-bar under the end of the jaw G,-thus causing the clamping end to bindon the end of the hoop, holding it secure during the operation of bending. The former B is then turned entirely around by means of the crank F, resting against the drawbar f, the hoop encircling the rim until the end of the hoop has passed the starting-point sudiciently for the lap, when the spring-arm E is brought down upon the hoop by means of the treadle j, thus holding the hoop while being tacked, after which operation the crank F is turned back within the circumference of the wheel B, resting on th e stop-pin a. Pressure is applied to the treadle o, forcing out the frame 0, which loosens the tapering draw-bar f, removing pressure of the clamping-jaw Gr, and at the same time drives off the finished hoop by means of the posts I) I), thus completing; the bending and tacking operation required to make the hoop.

Having described my invention, whatl claim, and desire to secure by Letters Patent, is

1. In a machine for forming hoops, the combination, with a circular former having a segmental pivoted clamping-jaw, of a tapering draw-bar extending through the former under the end of the clampingaw, and mechanism to operate the same, substantially as herein shown, and'for the purposes set forth.

2. In a machine for forming hoops, the e0mbination of a circular former having a segmental clamping-jaw to hold the end of the hoop, a tapering draw-bar extending through the former under the end of the clamping-jaw to operate the aw, and one or more studs or pins to push the finished hoop off the former, the draw-bar and pins being attached to a movable tool-conveying frame on the axle of the former, and suitable mechanism to operate the same, substantially as herein shown, and for the purposes set forth.

3. In a hoop-bending machine, the table A,

5. In a hoop-bending machine, the table A,

former B, pivoted jaw G, crank I stop-pin-a, sliding frame 0, tapering draw-bar f, posts I) 1), spring D, driving-rod I, crankarm J, rod 70, treadle 0 of the spring-arm E, rod 72,, and treadle j, substantially as herein shown, and for the purposes set forth. In testimony that I claim the foregoing as my own I hereunto affiX my signature in presence of two witnesses.

JOEL W. JONES.

Witnesses:

W. A. BLOOMFIELD,

E. B. HOWARD. 

